1.1. This question is about the decomposition of sulfur trioxide.

A 0.740 mol sample of SO₃ is introduced into a 2.86 dm³ reaction container and allowed to reach equilibrium at temperature T. 48% of the SO₃ had decomposed. 

Calculate the value for K_c in this reaction, giving your answer to 3 significant figures. 

2SO₃ (g) ⇌ 2SO₂ (g) + O₂ (g)

ΔH = + 196 kJ mol^-1

1.2. The size of the container for the reaction in part (a) is decreased. State the effect if any on the equilibrium constant, K_c, and the position of equilibrium. Justify your answer.

1.3. The temperature of the reaction in part (a) is decreased. State the effect, if any, on the equilibrium constant, K_c, and the position of equilibrium. Justify your answer.